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Conventions used
There are a number of text conventions used throughout this book.
CodeInText: Indicates code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles. Here is an example: "The application should be available at http://localhost:8080."
A block of code is set as follows:
LoginForm loginForm = new LoginForm() loginForm.addLoginListener(e -> { String password = e.getLoginParameter("password"); String username = e.getLoginParameter("username"); ... });
When we wish to draw your attention to a particular part of a code block, the relevant lines or items are set in bold:
LoginForm loginForm = new LoginForm() { @Override protected Component createContent(TextField username, PasswordField password, Button loginButton) { CheckBox rememberMe = new CheckBox(); rememberMe.setCaption("Remember me"); return new VerticalLayout(username, password, loginButton, rememberMe); } };
Any command-line input or output is written as follows:
cd Data-centric-Applications-with-Vaadin-8
mvn install
Bold: Indicates a new term, an important word, or words that you see onscreen. For example, words in menus or dialog boxes appear in the text like this. Here is an example: "Select System info from the Administration panel."
Warnings or important notes appear like this.
Tips and tricks appear like this.